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Humans and zebrafish share mechanisms that regulate the circadian system

Circadian rhythms - the natural cycle that dictates our biological processes over a 24-hour day - does more than tell us when to sleep or wake. Disruptions in the cycle are also associated with depression, problems with weight control, jet lag and more. Now Prof. Yoav Gothilf of Tel Aviv University's Department of Neurobiology at the George S. Wise Faculty of Life Sciences is looking to the common zebrafish to learn more about how the human circadian system functions.

21 Jul 2011

IHD blood test for Alzheimer's disease yields 83% sensitivity and 82% specificity

Innovative Health Diagnostics (IHD), the innovative company specialising in the development of diagnostic blood tests for Alzheimer's disease and neurodegenerative illnesses presents its first clinical results for its IHD-Amy blood test for Alzheimer's disease.

18 Jul 2011

DVS Sciences completes $14.6M series A financing

The Ontario Institute for Cancer Research (OICR) and DVS Sciences Inc., today announced that DVS Sciences has completed a $14.6 million series A financing.

14 Jul 2011

Light-switching complex could help detect signs of Alzheimer's disease

A breakthrough in sensing at Rice University could make finding signs of Alzheimer's disease nearly as simple as switching on a light.

14 Jul 2011

New method to study neuronal activity in the deepest layers of the cortex

Visual and tactile objects in our surroundings are translated into a perception by complex interactions of neurons in the cortex. The principles underlying spatial and temporal organization of neuronal activity during decision-making and object perception are not all understood yet.

13 Jul 2011

Broken compact fluorescent light bulbs can release harmful mercury vapor for a long time

Once broken, a compact fluorescent light bulb continuously releases mercury vapor into the air for weeks to months, and the total amount can exceed safe human exposure levels in a poorly ventilated room, according to study results reported in Environmental Engineering Science, a peer-reviewed online only journal published monthly by Mary Ann Liebert, Inc..

8 Jul 2011

New technique may help scientists probe mysteries of many different stem cells

Researchers at the Salk Institute have been able to genetically incorporate "unnatural" amino acids, such as those emitting green fluorescence, into neural stem cells, which then differentiate into brain neurons with the incandescent "tag" intact.

8 Jul 2011

Researchers identify cellular origin of malignant glioma

Using a mouse genetic system co-developed by researchers at the University of Oregon and Stanford University, a research team led by UO biologist Hui Zong has isolated the cellular origin for malignant glioma, a deadly human brain cancer.

8 Jul 2011

LCMC finds 9.6% of lung cancer patients with ALK rearrangement

ALK rearrangement has been found in 9.6% of lung cancer patients tested in the Lung Cancer Mutation Consortium, and MET amplification in another 4.1%, reflecting how many patients might benefit from targeted therapies such as crizotinib, according to research presented at the 14th World Conference on Lung Cancer in Amsterdam, hosted by the International Association for the Study of Lung Cancer.

5 Jul 2011

Liverpool scientists receive medical innovation award for dental device

A team of scientists from the University of Liverpool has won an award for developing a device that can identify early tooth decay and plaque before it is visible to the human eye.

1 Jul 2011

New book explores research into viral nanoparticles

Viruses that attack plants, insects, mammals and bacteria are proving effective platforms for delivering medicines and imaging chemicals to specific cells in the body, as building blocks for tiny battery electrodes and computer data storage devices, and other nanotechnologies.

1 Jul 2011

Two defective genes may cause telomere elongations in cancer cells: Study

Scientists at Johns Hopkins have provided more clues to one of the least understood phenomena in some cancers: why the "ends caps" of cellular DNA, called telomeres, lengthen instead of shorten.

1 Jul 2011

Conventional Estrogen Receptor measurement methods may result in 10-20% false negative rate

A team of Yale Cancer Center researchers has confirmed that between 10-20% of breast cancers classified as Estrogen Receptor (ER) negative are really positive. Understanding when and why breast cancers may be misclassified has important implications for treatment and outcomes for women diagnosed with breast cancer. Its findings are published online in the June 28 Journal of Clinical Oncology.

28 Jun 2011

Los Alamos National Lab scientists win three R&D Magazine's 2011 awards

Los Alamos National Laboratory scientists have won three of R&D Magazine's 2011 R&D100 Awards. Recognized as the "Oscars of Invention" by the Chicago Tribune, these awards honor the top 100 proven technological advances of the past year.

23 Jun 2011

Fluorescent signature discovery helps identify parathyroid glands during endocrine surgery

The parathyroid glands - four small organs the size of grains of rice located at the back of the throat - glow with a natural fluorescence in the near infrared region of the spectrum.

21 Jun 2011

Researchers uncover protein structural clues associated to PD

Researchers at the Keck School of Medicine of the University of Southern California (USC) have uncovered structural clues about the protein linked to Parkinson's disease (PD), which ultimately could lead to finding a cure for the degenerative neurological disorder.

18 Jun 2011

Ventana Medical receives FDA approval for new breast cancer genetic test

The U.S. Food and Drug Administration today approved a new genetic test that will help health care professionals determine if women with breast cancer are HER2-positive and, therefore, candidates for Herceptin, a commonly used breast cancer treatment.

15 Jun 2011

Synaptophysin controls replacement of vesicles

A University of Wisconsin-Madison research team has solved a 25-year mystery that may lead to better treatments for people with learning deficits and mental retardation.

9 Jun 2011

Novel FRET biosensor allows measurement of intraorganellar glutathione potentials in living cells

In work published in the June 2011 issue of Experimental Biology and Medicine, Kolossov, Spring and their co-investigators - a multidisciplinary team within the Institute for Genomic Biology at the University of Illinois - have transferred the concept of redox-sensitive Green Fluorescent Proteins (GFPs) to a quantitative F-rster resonance energy transfer (FRET) imaging platform.

8 Jun 2011

Super microscopes help scientists identify exact molecular 'switch' that spurs T-cells into action

Using the only microscope of its kind in Australia, medical scientists have been able for the first time to see the inner workings of T-cells, the front-line troops that alert our immune system to go on the defensive against germs and other invaders in our bloodstream.

6 Jun 2011